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BayatiStart for free
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Maths that sticks.

Short lessons, questions that reshuffle every time, and a learning path that shows you what you need first. Grades 7 to 10.

Start for freeNo sign-up. Create an account later if you like.
Formula(a + b)² = a² + 2ab + b²
MBrave Fox challenges you
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What is Bayati?

Who is Bayati for?

For all of secondary school. 38 chapters with 353 topics, in order from rational numbers to vectors. Plus around 14,000 question templates that roll new numbers every time you practise.

What if I can’t remember something?

The Learning path shows you what you need first. If something is missing, it takes you there first and then back to your topic.

Where does Bayati run?

On your phone, your tablet and in the browser. With an account you pick up where you left off on any device.

What does Bayati cost?

As a guest it’s free, with limits. With an account it’s free as well, with fewer limits. Premium costs €44.99 a year, that’s €3.75 a month.

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Try it now

A real question from chapter 7.01. Tap an answer.

More questions in the app
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Understand, practise, compete

UnderstandFive-minute lessons, step by step.
UnderstandFive-minute lessons, step by step.
PractiseQuestions that are never the same, and tests like in class.
PractiseQuestions that are never the same, and tests like in class.
DuelAgainst friends: who gets more right?
DuelAgainst friends: who gets more right?
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Want to master quadratic equations? Bayati shows you the way.

Bayati knows which topics come before every topic. You only learn what you’re really missing.

Binomische FormelnGrade 8 · done
Rearranging equationsnow · approx. 5 min
3
Square rootsGrade 9
Quadratic equationsYour goal
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Your Bayati

Bayati, Organic, Rosé or Robotics – choose how your app looks.

BayatiBayatiOrganicOrganicRoséRoséRoboticsRobotics
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Mode
LightLightDarkDark
\nOrganic only comes in light.\nRobotics only comes in dark.\n
Accent colour
VioletViolet
IndigoIndigo
SkySky
PinkPink
TealTeal
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Every choice changes the phone below right away.
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Safe for kids.

No ads and no trackingBayati shows no ads and passes no data to advertising companies.
No chat, no contact with strangersDuels have no chat, no free-text names and no profile pictures. Opponents only appear by nickname.
Content based on the curriculumThe chapters follow what grades 7 to 10 cover in class.
More for parents
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What you want to know.

Does Bayati cost anything?
Do I need an account?

No. You start as a guest and learn the first chapter. With an account you learn all chapters and continue on any device.

Which grades?
Does it work on phones and in the browser?
Questions about maths
How do I solve equations?

You change both sides in the same way until x stands alone. Whatever you do on the left, you also do on the right.

Read the explanation
What is the absolute value of a number?
How do I calculate percentages?
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Ready? The first lesson takes five minutes.

Start for freeNo sign-up. Create an account later if you like.
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9:41
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Good evening, Luise

Grade 7 · 12 min learned today
3LEVEL
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XP to level 4120 / 200
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Pick up where you left off7.01.03 Ordering and comparing
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Step 3 of 9 · approx. 4 min
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Formulas
Tests
playing cards
Duel
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Chapters6 chapters
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Rational numbers7.01
4/15
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Terms and variables7.02
1/13
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Equations7.03
0/12
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Relations and proportionality7.04
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Percentages and interest7.05
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Angles and symmetry7.06
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9:41
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Duel · 7.01 Rational numbers
3 / 51:12
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Fox solved question 3
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Absolute value and opposite number
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What is the absolute value?|−12|
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12
−12
0
24
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Check
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9:41
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Test · 7.01 Rational numbers
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7/10
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7 of 10 correct

Time 8:24 · 2 more than last time
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+60 XPLevel 3 · 180 / 200
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Questions
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Got wrong
\nQuestion 4 · Absolute value and opposite\n
What is the absolute value?|−12|
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Your answer−12
Correct12
\nThe absolute value is the distance from zero and never negative.\nLearning path\n
\nQuestion 8 · Multiplying integers\n
Calculate:(−3) · 4
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Your answer12
Correct−12
\nDifferent signs give minus.\nLearning path\n
\nQuestion 9 · Multiplying integers\n
Calculate:(−6) · (−2)
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Your answer−12
Correct12
\nSame signs give plus.\nLearning path\n
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Practise mistakes again
Done
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7.01.04 Absolute value and opposite
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Distance from zero

The absolute value of a number is its distance from zero on the number line. It is written with two vertical bars.

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\\(|-5| = 5\\)The distance from −5 to zero is 5.
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  1. 1
    Find the number on the number line\\(-5\\)
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  2. 2
    Count the steps to zero\\(-5 \\to 0\\)
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    Write down the absolute value\\(|-5| = 5\\)
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RememberAn absolute value is never negative.
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Watch out\\(-\\lvert -5 \\rvert\\) is \\(-5\\), not \\(5\\).
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What is \\(|-12|\\)?Tap to see the answer
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What is \\(|-12|\\)?\\(|-12| = 12\\)From −12 to zero it is 12 steps.
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Drawing: number line from −6 to 6, distance from −5 to zero marked
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Which grade are you in?
Gr. {{ k.g }}Gr. {{ k.g }}
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Question {{ nr }} of {{ anzahl }}
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That was 5 of more than 1,000 questions.
Continue in the appFive new questions
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\nGrade 7 · Angle sum in a triangle\nTwo angles of a triangle are 50° and 70°. How big is the third angle γ?\nOpen the arc on the protractor as wide as γ. Then check.\n
Correct!
180° − 50° − 70° = 60°.
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Wrong!
You had {{ wertText }}, the answer is 60°.
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Check
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\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n50°\n70°\n{{ gammaText }}\n50°\n70°\n{{ hCText }}\n{{ diffText }}\n180°\n0°\n180°\n
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\n€44.99 : 12Premium per year, per month\n= €3.75a month\n€4.99 · 12 = €59.88monthly plan, per year\n
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